Clutch.



I F. V. PETERSON.

CLUTCH. APPLICATION FILED JAN. 27, 1912.

1,125,708. Patented Jan. 19, 1915.

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FRANK v. PETERSON, on LINDSBORG, KANSAS.

- CLUTCH.

machine so as to quickly change the speed of the seed plantingmechanism, from the drivers seat without the necessity ofdismounting-from the machine.

Other objects and advantages will be apparent from the followingdescription and with particular reference to the accompany ing drawings.

In the drawings: Figure 1 is an elevation of my clutch. Fig. 2 is apartial vertical longitudinal sectional view of the device. Fig. 3 is.an end elevation.

Referring particularly to the accompanying drawings, 12 represents ashaft on which my clutchis mounted. Loosely mounted on the end of theshaft 12 is a sleeve 15. Secured on one end of the sleeve 15 is asprocket wheel 16, which receives its rotary motion, by means of a chainon the axle of the machine (not shown). The end of the sleeve 15opposite to the sprocket 16 is formed with threads 20 which are'adaptedto receive the toothed wheel 21, whi ch toothed wheel rotates with thesprocket. On one end of the shaft is secured a casing-which is dividedinto an upper flattened portion 22 and a lower flattened portion 23which'are secured together in any suitable manner, and keyed to theshaft as indicated at 26. The inner ends of the members 22 and 23 carrythe halves 24 and 25 of a cylindrica casing. On the upper face of theflattened member 22 are the vertically extending perforated parallelears 27 between which is pivoted a detent lever or arm 28. Extendinglaterally at right angles from the free end of the arm or lever 28 is alug 29 (best seen in Fig. 3) to which is attached one end of a coilSpecification of Letters Patent.

Patented J an. 19, 1915.

Application filed January 27, 1912. Serial No. 673,888.

spring 30, the other end of said spring being attached to a lug 31 onthe'fiattened member 23. A finger piece 32 extends outwardly from thearm 28 so that the same may be grasped to swing the arm on its pivot. Inthe upper portion of the section 21 of the cylindrical casing is formedan opening 34., through which the arm 28 is adapted to pass to engagebetween the teeth of the said wheel 21.

The sprocket 1 6, and the toothed wheel 21, rotate continuously throughthe means of the before-mentioned chain, and when the arm 28 is throwndown into the opening 34 to engage between the teeth of the wheel 21,the casing together with the arm 28 rotates with the shaft 12 and drivesthe shaft. When the arm 28 is thrown out of the opening 34, the sprocket16 will, continue to rotate, but the shaft 12 will remain stationary.

In the ordinary use of the device the arm 28 is thrown into the opening34 so as to cause the rotation of the shaft by means of the sprocket 16.When the lever 28 is disengaged from the opening 34, the sleeve 15 andtoothed wheels 16 and 21 rotate idly, but when the'lever is thrown so asto pass into the opening 34, the lever will engage between certain ofthe teeth of the wheel 21 and lock the casing 25 thereto. causing thisto rotate with the sleeve, and by reason of the fact that this casing issecured to the shaft, the shaft will be rotated with it. It will ofcourse be understood that the clutch is shifted when the machine is atrest.

From the foregoing it will readily be seen that the lever 28 is easilyaccessible so that it may be quickly thrown in or out. It will also benoted that the spring 30 is so arranged with respect to the pivot of thelever 28 that the said lever will remain in either limit of its swingingmovement, the spring being arranged to exert a pull, on either sideotherend of the sleeve, 8. member secured to the endof the shaftcomprising a 1 attened portion, and a casing inclosing the toothed Intestirfiony whereof I affix my signature,

Wheel, a spring-pressed pivoted arm carried in the presence of twowitnesses. by the flattened portion of the member, said FRANK V.PETERSON. caslng portlon havmg an opemng therem 5 for passagetherethrough of the said arm Witnesses:

forengagement between the teeth of the J. M. NELSON, toothed wheel. C.A. Jomvsox

